Dependency inject logger and replace println

src/main/scala/fetch/Main.scala

@@ -4,6 +4,7 @@ import cats.effect.IO
 import cats.effect.unsafe.implicits.global
 import cats.implicits.toTraverseOps
 import db.DBService
+import org.typelevel.log4cats.slf4j.Slf4jLogger
 
 import java.time.LocalDateTime
 
@@ -12,8 +13,10 @@ object Main {
     val from = LocalDateTime.of(2023, 4, 28, 10, 0)
     val to = LocalDateTime.of(2023, 4, 28, 13, 30)
     for {
-//      fetchResultEither <- FetchService.fetchFromDate(LocalDate.of(2023, 4, 28)).attempt
-      fetchResultEither <- FetchService.fetchInRange(from, to).attempt
+      log <- Slf4jLogger.create[IO]
+      fetch <- FetchService.of
+//      fetchResultEither <- fetch.fetchFromDate(LocalDate.of(2023, 4, 28)).attempt
+      fetchResultEither <- fetch.fetchInRange(from, to).attempt
       fetchServiceError = fetchResultEither.left.toOption.map(e => s"FetchServiceError: ${e.getMessage}").toList
       fetchResult = fetchResultEither.getOrElse(List.empty)
       (fetchErrors, successDownloads) = fetchResult.partitionMap(identity)
@@ -22,8 +25,8 @@ object Main {
       (saveErrors, successSaves) = saveResults.partitionMap(identity)
       successes = successDownloads.map(s => s"fetched: ${s._1}") ++ successSaves.map(s => s"saved: $s")
       errors = fetchServiceError ++ fetchErrors.map(e => s"FetchError: ${e.getMessage}") ++ saveErrors.map(e => s"SaveError: ${e.getMessage}")
-      _ <- IO.println(s"errors: $errors")
-      _ <- IO.println(s"successes: $successes")
+      _ <- log.info(s"errors: $errors")
+      _ <- log.info(s"successes: $successes")
     } yield (successes, errors)
   }